Polair 4.2

Slide 2: Polair© 4.2 • Reliable & Fast, Polair© 4.2 MODELS THE ATMOSPHERIC DISPERSION OF POLLUTANTS. • For Environmental Impact Studies of Atmospheric Pollutant Emissions. • A range of Atmospheric Dispersion Models including the Gaussian and Puff Models optimized for the atmospheric dispersion of pollutants. Atmospheric Dispersion Modeling has never been this easy. Copyright © 2008 Odotech Inc. Polair is a trademark of Odotech Inc.

Slide 3: Modeling Framework • Import a map of the target site in various graphic formats: – Image Bitmap Windows (bmp) – Graphics Interchange Format (gif) – Tag Image File Format (tif) – Portable Network Graphics (png) – CD Kodak Photo (pcd) Aerial Map of Site • Environment types of receptors modeled: rural, urban. Copyright © 2008 Odotech Inc. Polair is a trademark of Odotech Inc.

Slide 4: Meteorological Data • Complete meteorological data management environment: 1. Import Text Files 2. Edit Data 3. Display Wind & Stability Roses Meteorological Data Editing Wind Roses Display Copyright © 2008 Odotech Inc. Polair is a trademark of Odotech Inc.

Slide 5: Chemical Compound Assessed • Specifically a chemical compound (selected from an incremental data base of 400 compounds and 5000 chemical synonyms) • Chemical compounds from the data base can have the following thresholds: 1. Olfactory Perception 2. Toxicity 3. Explosiveness 4. Flammability Chemical Compound Selection 5. Exposure to Different Standards 6. Emission Fluctuation over Time (manual entry or .txt file import) Copyright © 2008 Odotech Inc. Polair is a trademark of Odotech Inc.

Slide 6: Sources • Different types of emission sources: 1. Point 2. Surface 3. Linear • Characterized by: 1. Physical Dimensions Parametrization of Sources 2. Height 3. Flow Rate 4. Flow Surface Distribution 5. Flow Rate Time Variation Copyright © 2008 Odotech Inc. Polair is a trademark of Odotech Inc.

Slide 7: Receptors • Different receptors, in order to target geographic areas of interest for atmospheric dispersion simulation: 1. Point 2. Line 3. Surface • Characterization of Definition of Receptors receptors : 1. Dimensions 2. Measuring Height Copyright © 2008 Odotech Inc. Polair is a trademark of Odotech Inc.

Slide 9: Gaussian Model • The Gaussian Model is one of the most widely used models in the world to study dispersion phenomena, notably by the EPA (Environmental Protection Agency). This model estimates pollutant concentrations at any point in space based on various factors: 1. Wind Speed & Direction 2. Atmospheric Stability Gaussian Dispersion Plume 3. Mixing Height 4. Temperature Copyright © 2008 Odotech Inc. Polair is a trademark of Odotech Inc.

Slide 10: Puff Model • The Puff Model was designed to simulate instantaneous releases into the atmosphere. This model is used to predict the impact of an accident (tanker truck, holding tank leak or broken pipeline) to allow Puff Model Simulation effective emergency planning. Copyright © 2008 Odotech Inc. Polair is a trademark of Odotech Inc.

Slide 11: MUC Model • The MUC (Montreal Urban Community) model comprises the four formulae specified in MUC By- Law 90 regarding the atmospheric dispersion of gaseous contaminants. Simulation with MUC Model Copyright © 2008 Odotech Inc. Polair is a trademark of Odotech Inc.

Slide 12: Plume Rise • Polair© 4.2 takes in account the plume rise elevation by correcting the value of the stack height. In order to effectively evaluate this height, 3 models can be used: 1. U.S. Environmental Protection Agency (EPA) 2. Holland 3. Montreal Urban Community (MUC) Copyright © 2008 Odotech Inc. Polair is a trademark of Odotech Inc.

Slide 13: Simulation Types • Polair© 4.2 offers you multiple simulation types: 1. Hourly Maxima 2. Percentiles 3. Trigger Thresholds 4. Mean Concentrations 5. Instantaneous Concentrations Copyright © 2008 Odotech Inc. Polair is a trademark of Odotech Inc.

Slide 14: Simulation Results • Personalize the display of your results • Select and modify different display parameters. Wind Roses at Receptor Point Display Configuration Copyright © 2008 Odotech Inc. Polair is a trademark of Odotech Inc.

Slide 15: Simulation Reports • Automatically generate simulation reports, exportable to text files • Export your graphic results to bitmap files Simulation Report Export Graphic Results Copyright © 2008 Odotech Inc. Polair is a trademark of Odotech Inc.

Slide 16: Computer Requirements • Polair© 4.2 requires a computer with the following characteristics: – Intel compatible processor (1 Ghz recommended) – Windows 2000/XP Operating System – 50 MB hard disk space for the initial installation – 32 MB graphic card For modeling atmospheric dispersion of pollutants, Polair© 4.2 is unbeatable. Fast, effective, user-friendly, ... Modeling has never been this easy. Copyright © 2008 Odotech Inc. Polair is a trademark of Odotech Inc.

Slide 17: Contact • Odotech is a leading designer and producer of odor measuring and monitoring systems. Its services department carries out odor impact and related studies for municipalities, waste disposal operators, waste water treatment plants, and various industrial facilities, worldwide. Odotech Inc. Odotech SAS 3333 Queen Mary Road, Suite 301 20 rue de la Villette Montréal (Québec) H3V 1A2 69328 Lyon Cedex Canada France Phone: (514) 340 5250 Phone : +33 (0) 4 26 68 51 56 Fax: (514) 340 5211 Fax : +33 (0) 4 26 68 51 57 info@odotech.com info@odotech.com www.odotech.com www.odotech.fr Copyright © 2008 Odotech Inc. Polair is a trademark of Odotech Inc.

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